Use the information in the resource lesson, What is Mass?, so assist you with your answers. Try to make each initial answer correct. Don't just guess - research and show me that you have learned the correct answers. Be careful!

What is the charge of an UP quark?

-1-1/3+2/3+1

What is the charge of a DOWN quark?

-1-1/3+2/3+1

What is the quark composition of a proton?

DOWN, DOWN, DOWNDOWN, DOWN, UPDOWN, UP, UPUP, UP, UP

What is the quark composition of a neutron?

DOWN, DOWN, DOWNDOWN, DOWN, UPDOWN, UP, UPUP, UP, UP

Which of the four fundamental forces is not included in the Standard Model?